请输入您要查询的英文单词:
单词
alertness
释义
alertness
/əˈlɜːtnɪs/
n.
(liveliness of mind)
警觉;警惕;留神;注意
The drug improved mental alertness.
这种药可以提高大脑的注意力。
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更新时间:2026/8/18 20:03:46